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https://issues.apache.org/jira/browse/HDFS-16737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17583222#comment-17583222
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ASF GitHub Bot commented on HDFS-16737:
---------------------------------------

hadoop-yetus commented on PR #4784:
URL: https://github.com/apache/hadoop/pull/4784#issuecomment-1223150269

   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
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|
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   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  | 333m 53s |  |  hadoop-hdfs in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   0m 59s |  |  The patch does not 
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   |  |   | 452m 42s |  |  |
   
   
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   | GITHUB PR | https://github.com/apache/hadoop/pull/4784 |
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   | Max. process+thread count | 2326 (vs. ulimit of 5500) |
   | modules | C: hadoop-hdfs-project/hadoop-hdfs U: 
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> Fix number of threads in FsDatasetAsyncDiskService#addExecutorForVolume
> -----------------------------------------------------------------------
>
>                 Key: HDFS-16737
>                 URL: https://issues.apache.org/jira/browse/HDFS-16737
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: ZanderXu
>            Assignee: ZanderXu
>            Priority: Major
>              Labels: pull-request-available
>
> The number of threads in FsDatasetAsyncDiskService#addExecutorForVolume is 
> elastic right now, make it fixed.
> Presently the corePoolSize is set to 1 and maximumPoolSize is set to 
> maxNumThreadsPerVolume, but since the size of Queue is Integer.MAX, the queue 
> doesn't tend to get full and threads are always confined to 1 irrespective of 
> maxNumThreadsPerVolume.



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